[6.2] Sema: Relax diagnosis of implied marker protocol conformances with mismatched availability#82310
Merged
slavapestov merged 1 commit intoswiftlang:release/6.2from Jun 18, 2025
Conversation
…smatched availability This logic was introduced in swiftlang#75135. The intent was to prevent an implied conformance from overriding an existing unavailable one, for example in the case of Sendable. Let's relax this check a bit to only diagnose if the mismatch is in the unconditional availability, and not OS version. Fixes rdar://142873265.
Contributor
Author
|
@swift-ci Please test |
hborla
approved these changes
Jun 17, 2025
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
6.2 cherry-pick of #82308
Description: Fix a spurious "redundant
Sendableconformance" warning when two conformances with different availability both implied a conformance to Sendable.Origination: This check was introduced in [ConformanceLookup] Don't allow skipping inherited unavailable conformances in favor of explicit available ones. #75135. The intent was to prevent an implied Sendable conformance from overriding an existing unavailable Sendable conformance. This change just relaxes the check to only consider unconditional unavailability.
Radar: Fixes rdar://142873265.
Tested: New tests added. (The FIXME mentioned is an existing problem and not a regression.)
Reviewed by: @hborla